Features: This new type of multifunction bicycle-odometer can display all information about the riding speed, mileage and time dynamically when riding. it also includes the function of thermometer, clock and stopwatch. Engineering material plastics, LCD screen, electronics component Two lines four window displays for viewing easily Luminous function to facilitate the night view Waterproof and anti-pollution Description: Engineering plastic and electronic components material with LCD, good durability and have a clear view of the data. Durable and water resistant for use in all conditions. Easy installation, no tools required. Press any key at night, the light can keep 4 second Specifications: Materials: ABS Main Color: Silver&Black Power: 1 X 3V CR2032 Battery cell Dimension: approx. 88 x 45 x 10mm Package includes: 1 x LCD bicycle computer 1 x Transmitter sensor 1 x Mounting shoe 1 x Magnet 1 x Bracket 4 x Cable ties 1 x CR2032 battery